package chapter04.d2_robust.demo1;

/**
 * Created with IntelliJ IDEA.
 *
 * @Author: jack_yang
 * @Date: 2024/5/8
 * @Description: addition and subtraction
 */
public class MainTest {
    public static void main(String[] args) throws Exception {
        String operation = new Operation().generateAddOperation(50,60);
        System.out.println(operation);
    }
}
